| Standard Butt Hinge | Conventional hinged bathroom doors in residential and light commercial interiors | Wood, composite, hollow-core, or lightweight metal doors | Up to approximately 45 kg | 2 hinges for light doors; 3 hinges for heavier, taller, or frequently used doors | Approximately 20–45 kg per door when correctly sized and installed; capacity depends on hinge size, screws, frame, and door construction | Approximately 90°–180°, depending on knuckle design, frame clearance, and door-stop position | Widely available, economical, easy to replace, and suitable for most standard door frames | Use corrosion-resistant stainless steel or plated finishes in humid rooms. Check the hinge leaf size, screw length, door thickness, and frame strength. |
| Ball-Bearing Butt Hinge | Heavy or frequently used bathroom doors, including public washrooms and accessible facilities | Solid-core wood, composite, or metal doors | Approximately 35–80 kg | Usually 3 hinges; use additional hinges when specified by the door manufacturer | Approximately 45–80 kg per door in common heavy-duty applications | Approximately 90°–180° | Reduced friction, smoother operation, and better durability under repeated use | Confirm the load rating for the complete hinge set. The frame, fasteners, and door edge must also be suitable for the door weight. |
| Concealed Hinge | Modern interior bathroom doors where the hinge should not be visible when the door is closed | Cabinet-style doors, flush interior doors, and specially prepared wood or composite doors | Approximately 10–40 kg, depending on hinge size and quantity | Typically 2–3 hinges; use the installation chart supplied for the specific hinge | Commonly approximately 10–40 kg per door system | Usually approximately 100°–120°; some models provide wider opening with a suitable stop-free layout | Clean appearance, adjustable alignment, and protection from direct splash exposure | Requires accurate cup and mounting-plate preparation. Verify door thickness, overlay, adjustment range, and whether the hinge is rated for humid environments. |
| Pivot Hinge | Frameless, flush, or minimalist bathroom doors; useful when the door should pivot from the top and bottom | Wood, composite, aluminum-framed, or tempered glass doors with compatible fittings | Approximately 20–80 kg | One top-and-bottom pivot set; additional support may be required for large or heavy doors | Approximately 30–80 kg per pivot set, depending on the floor, ceiling, and frame connection | Commonly 90°–180°; some systems are designed for single-direction opening or controlled return | Can support wide doors, offers a distinctive appearance, and may allow two-way or self-closing movement | Floor and head reinforcement are critical. Confirm the required setback, pivot position, floor loading, door clearance, and closing direction. |
| Continuous Hinge | Tall, heavy, misalignment-prone, or high-traffic bathroom doors where load distribution is important | Wood, composite, metal, or reinforced interior doors | Approximately 45–135 kg, depending on hinge length and construction | One full-height hinge running along most or all of the door edge | Approximately 45–135 kg per full-length hinge, subject to the tested model and fixing pattern | Usually approximately 90°–180° | Spreads the door load along the frame, helps reduce sagging, and improves alignment over time | Use corrosion-resistant material in humid environments. The hinge must be cut to the correct length and fixed with enough suitable fasteners. |
| Glass Door Patch Hinge | Frameless tempered-glass shower doors and glass bathroom enclosures | Tempered safety glass, commonly around 8–12 mm thick, subject to the glass system specification | Approximately 20–45 kg per door | Usually 2 hinges for standard shower doors; 3 may be required for taller or heavier doors | Commonly approximately 25–45 kg per door system, depending on hinge count and tested configuration | Usually 90°; some systems allow approximately 90°–180° or include a defined closing position | Designed for frameless glass, provides a clean appearance, and can include self-closing or hold-open functions | Use only with compatible tempered glass and the specified cut-outs. Do not drill or modify tempered glass after manufacture; verify wall and glass-side reinforcement. |
| Self-Closing Hinge | Bathroom, washroom, and shower-area doors that need to return automatically to a closed position | Wood, composite, metal, or compatible glass door systems | Approximately 15–60 kg, depending on the model and door width | Usually 2 hinges for light doors or 3 hinges for heavier doors; follow the closing-force specification | Approximately 20–60 kg per door system, with separate limits for door width and closing force | Commonly 90°–120°; many models close from a partially open position | Helps maintain privacy, reduce drafts, and keep moisture contained in shower or washroom areas | Ensure the closing force is strong enough for the door but not excessive for users. Check latch alignment, seal resistance, door width, and accessibility requirements. |